Feed-water heater



G. GASSADY. EEED WATER EEA'EEE.

(No Mcdal.)

Patented Mar.27,1883.

lUNITED STATES PATENT OFFICE.

GEORGE CASSADY, OF FLNT, MICHIGAN.

FEED-WATER HEATER.

SPECIFICATION forming part of Letters Patent No. 274,561, dated March27,1883.

Application filed November 14, 1882. (No model.)

To all lwhom it may concern:

Be it hnown that I, GEORGE CAssADY, a citizen of the United States,residing' at Flint, in the county of Genesee and State of Michigan, haveinvented a new and useful Feed- Water Heater, of which the following isa specification, reference being had to the accompanying drawings.

This invention relates to feed-water heaters for locomotive and otherboilers; and it consists in certain improvements in the construction ofthe same, which will be hereinafter fully described, and particularlypointed out in the claims.

In the drawings hereto annexed, Figure l 'is atop view, showing myinvention lapplied to the fire-box of a locomotive, the crownsheethaving been broken away in order to show the invention more clearly; andFig. 24

' by pipes H with the steam-dome I of the boiler.

Their lower ends are connected by pipes J with the injectors.

The pipe E isprovided with a centrally-located partition, K, at thesides oi which for- 'wardly-extending pipes L L are connected to saidpipe E. The pipes yL L are coiled outwardly, as shown, in zigzagparallel courses, and in a horizontal plane a short distance below thecrown-sheet, until they finally extend out through the front of thefurnace, as at M, and thence downward and into the boiler. The severalbends ot the pipes L at the front end of the furnace are provided withwashout plugs N.

In operation water is pumped into the chamber G through thepipes J.Check-valves O, contained in said chambers, instantly close the pipes H,thus forcing the feed-water to enter the feed-pipes L, which, as will beseen, are thoroughly exposed to the furnace-tire, and, being below thecrown-sheet, are entirely enveloped by the dames. The water during itspassage through the feed-pipes is thus thoroughly heated or partiallyconverted into steam, and is in this state delivered into the boiler.When the pumping is suspended the check-valves 0 close the pipes J, thuspermittingV the pipes L to communicate through the chambers Grand pipesH with the steamdome, into which steam generated in the pipes L is thusconducted.

[t will be understood that-...the injectors may be operatedsimultaneously or independently, as may be desired, the pipes L L beingseparated by the partition L. Therefore any accident to either side ofthe feed-water apparatus will not incapacitate the other side for work.

I claim and desire to secure by Letters Patent of the United Statesl..The combination, with a boiler-furnace, ot' a transverse horizontal pipehaving a centrai partition, pipes connected to said transverse pipe atthe sides ot' said partition, coiled in a horizontal plane below thecrown-sheet and leading to the boiler, chambers at the outer ends ot'the said transverse pipes, pipes connecting the said chambers with thesteamdome ofthe boilerl and with the injectors, and double-actingcheck-valves contained in said chambers, as set forth.

2. As an improvement in feed-water heaters, the combination, with aboiler-furnace, of a feed-pipe coiled in .said furnace below thecrown-sheet, and having one end connected with the boiler and the otherend with both the steam-dome and the injector, and an automaticdouble-actin g check-valve so arranged as to cut oft communicationbetween the feedpipe and the steam-dome while the injector is beingoperated, and to close the injector-pipe vwhen pumping is suspended, asset forth.

In testimony that I claim theV foregoing as my own I have hereto affixedmy signature in presence ot' two witnesses.

f GEORGE GASSADY.

Witnesses l GEO. L. WATEEoUs,

W. GURNEA.

